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Service bulletin B520320

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10190853
Published by NHTSA2021-04-26
Manufacturer's numberB520320
Manufacturer's date2021-03-01
NHTSA componentBACK OVER PREVENTION

NHTSA's summary

RATTLING NOISE FROM THE FRONT HEADREST: A rattling noise can be heard coming from the front seat headrest.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance, Backup camera

Vehicles listed
BMW 740E2017, 2018, 2019
BMW 740I2017, 2018, 2019, 2020, 2021
BMW 740LI2016 to 2017
BMW 745E2020
BMW 750I2018, 2019
BMW 750LI2016 to 2019
BMW 750LI2021
BMW B7 ALPINA2018 to 2021
BMW F 850 GS ADVENTURE2021 (the catalog's model; the bulletin names a series or trim of it)
BMW M760I2017, 2018, 2019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
21V0960002021-02-19. BACK OVER PREVENTION:SOFTWARE; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
B6504142022-12-12. Service bulletin. According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. The fault may or may not currently be present. Or 2. ACSM fault code "930A1C - Front passenger seat occupancy detection transmitting fault(moisture)" is stored. The fault may or may not currently be present.
B0903212022-06-21. Service bulletin. In some rare cases a customer vehicle might be excluded from one or more Remote Software Upgrade(RSU) campaigns. This SIB gives an overview how to identify these vehicles and how to proceed in case of a customer complaint.
B3204202021-12-27. Service bulletin. A groaning type noise is heard during the height adjustment.
B6629192021-04-26. Service bulletin. TOP VIEW CAMERA IMAGE IS MISALIGNED: The top view image of the vehicle is misaligned when observed in the Control Information Display (CID).
B0901202021-04-26. Service bulletin. BMW REMOTE SOFTWARE UPGRADE IS NOT OFFERED FOR INSTALLATION: The customer complains that the BMW Remote Software Upgrade (RSU) is not possible in his/her vehicle, though the Remote Software Upgrade menu is available in the vehicle and a download was performed by the vehicle or the BMW Connected App.
B6629192020-12-21. Service bulletin. TOP VIEW CAMERA: The top view image of the vehicle is misaligned when observed in the Control Information Display (CID). When the vehicle is parked in a parking spot with line markings, it is clearly noticed in the CID that the lines are not parallel to the side of the vehicle. This may be noticed on either the driver side, passenger side or both.
B6617202020-12-21. Service bulletin. SURROUND VIEW - PARKING VIEW IMAGES DISPLAYED INCORRECTLY: After programming and shifting into reverse, there may be various sporadic concerns regarding the rearview camera and the surround view (top view) camera images in the CID (Central Information Display).
B6608202020-11-23. Service bulletin. SERVICE ACTION - REPLACE RIGHT REAR SHORT RANGE RADAR SENSOR (SRR): The functionality of the right rear SRR sensor could be reduced which would display the Driving Assistance Check Control Message.
B6610202020-05-18. Service bulletin. KAFAS04 (CAMERA-BASED DRIVER ASSISTANCE SYSTEMS) LIMITATIONS: Various functions of the KAFAS (without radar installed) are not operating up to customer expectations.
B6608172020-04-27. Service bulletin. REAR VIEW CAMERA FAILS TO DISPLAY IMAGE: This Service Information Bulletin (Revision 6) replaces SI B66 08 17 dated January 2020. Sporadically when the rear view camera is activated no image appears in the display. The rear view camera can be activated by either: 1. Selecting reverse with the shift selector 2. Camera activation via the button on the center console Camera function returns after a terminal change.